RU212942U1 - LED module - Google Patents

Abstract

The utility model relates to lighting equipment and concerns products intended for illuminating high-brightness liquid crystal matrices. The technical result obtained by using the product in high-brightness backlighting is to reduce power consumption by reducing the length of the conductors from the PWM driver to the LED panel. The LED module includes an LED panel made on the basis of a single-layer board with an aluminum base and having at least one electrical connector, a PWM driver having at least one electrical connector, and a multilayer adapter board located on the same plane with the LED panel and having on the same side mating connectors for connecting the LED panel, the number of which is equal to the number of connectors on the LED panel, and on the opposite side of the multilayer adapter board there is at least one mating connector for connecting a PWM driver, which is located on the opposite side of the object's LED panel installation of the LED module in close proximity to the multi-layer adapter board. 4 ill.

Description

Field of technology to which the utility model belongs

The utility model relates to lighting equipment and concerns products intended for illuminating high-brightness liquid crystal matrices.

State of the art

From the existing prior art known:

1. LED strips [1], which are an elongated flexible or rigid board - a base on which LEDs are installed in one row. Such rulers can be used in budget displays with back illumination (in the form of an array of rulers illuminating the light diffuser over its larger area) or edge illumination (in the form of a single ruler located on the end side of the diffuser)

2. Full-matrix direct illumination [2], which is a single rigid base board or an array of boards on which an LED matrix is located, formed from 2 or more rows of LEDs.

A significant disadvantage of solutions from sources is that these solutions, when they are scaled (increasing the number of lines or LEDs) to increase the brightness of LCD displays, the number of contacts increases, the power consumption and sensitivity of such backlight to the quality of the power supply increase, difficulties arise when switching lines or an array LEDs on the board with a PWM backlight driver, due to the increased number of contacts, due to increased power consumption, the power of the PWM driver increases, and as a result, the likelihood of electrical noise in the conductors affecting the operation of the electronic components of the LCD display.

Disclosure of the essence of the utility model

The technical problem to be solved by the claimed utility model is the development of an LED module, which consists of an LED panel made on the basis of a single-layer board with a PWM driver connected directly to it using a single connector without the use of cables and wires.

The technical result obtained by using the product in high-brightness backlighting is to reduce power consumption by reducing the length of the conductors from the PWM driver to the LED panel. Reducing the length of the conductors also reduces the interference from the PWM driver.

The problem is solved due to the fact that the LED module is designed in such a way as to reduce the length of the conductors from the PWM driver to the LED panel, and for this the PWM driver is located in close proximity to the LED panel, and its connection to the LED panel is ensured by the fact that the LED the module contains a multi-layer electrical adapter board and each component of the LED module has the electrical connectors necessary to connect the components to each other.

Brief description of the drawings

The essence of the utility model is illustrated by the drawing:

fig. 1 - section of the LED module;

fig. 2 - image of the installed LED modules from the side of the LED panel;

fig. 3 - image of the installed LED modules from the side of the PWM drivers;

fig. 4 is an example of using the LED module.

In FIG. 1-3, the following designations are adopted:

1 - LED panel, made on the basis of a single-layer board

2 - multilayer riser

3 - PWM driver

4 - LED panel electrical connector

5 - mating electrical connector of the adapter board for connection with the LED panel

6 - reciprocal electrical connector of the adapter board for connection with the PWM driver

7 - electrical connector / PWM driver connectors

8 - LED module

9 - LED module installation object

10 - hole

Implementation of the utility model:

The LED module (8) is an assembly of an LED panel (1) based on a single-layer board with an aluminum base and having at least one connector (4) that can be soldered using surface mounting. This assembly includes a multi-layer adapter board (2) located in the same plane with the LED panel (1) and having mating connectors (5), the number of which matches the number of connectors (4) located on the LED panel (1). The multilayer adapter board (2) also contains a mating connector/sockets (6) located on its opposite side and intended for its switching with the PWM driver (3), which contains at least one electrical connector (7). The installation of such an LED module (8) is shown in Fig.1. The LED panel (1), connected by connectors together with the multi-layer adapter board (2), is installed on one side of the installation object of the LED module (9), such as the LCD case for illuminating the liquid crystal matrix, and the PWM driver (3) of the LED module is installed on opposite side of the object (9), such as the outside of the LCD. The PWM driver is connected to the multilayer adapter board using connectors through the hole (10) in the LED module installation object (9). The product made according to this utility model is used in a mobile information system made according to the patent RU 2659956 C1 and containing a video glass of a vehicle made according to the application RU 2021114636 A, the LED module in the amount of four pieces is installed on the bracket of the built-in mobile display, made according to the patent RU 205681 U1 (Fig. 2, Fig. 3). An example of an LCD display working with these LED modules on a mobile information system RU 2659956 C1 is shown in Fig. four.

List of sources used

1. Online store of the company "MASTERSVET"

URL: https://ledpremium.ru/catalog/riggid/

2. Internet forum "THG Expert Club"

URL: http://www.thg.ru/forum/showthread.php?t=102054

Claims (1)

An LED module, which includes an LED panel made on the basis of a single-layer board with an aluminum base and having at least one electrical connector, a PWM driver having at least one electrical connector, characterized in that it contains a multilayer adapter board located on the same plane with the LED panel and having on the same side mating connectors for connecting the LED panel, the number of which is equal to the number of connectors on the LED panel, and on the opposite side of the multilayer adapter board there is at least one mating connector for connecting the PWM driver, which is located on the opposite side of the LED panel of the LED module installation object in close proximity to the multi-layer adapter board.

Images